the environment has changed. if there's still time far two-state solution we're on the last leg. >> warner: why the last leg? >> israelis and arabs no longer believe in the two-state solution. >> warner: during our recent trip in january, we found many palestinians who've lost belief in the peace process. nasser hantuni owns birds of peace, a pet shop just inside the west bank. he works in site of the security wall israel erected during second palestinian intifada, or uprising, in the early 2000s. >> ( translated ): we feel very frustrated. for the past 20 to 22 years we've had hope in negotiations and yet there are no concrete results on the ground and still we haven't reached peace. all we sue is more settlements, the wall, checkpoints, closures and constraints over the palestinians. 90% of us have lost hope of reaching a peaceful solution with the israelis. >> warner: do you think that there's a possibility that if nothing happens on the peace front more violence will break out? >> it could be, yes. it is a va